CN204572429U - Water pump backflow structure - Google Patents
Water pump backflow structure Download PDFInfo
- Publication number
- CN204572429U CN204572429U CN201520229691.2U CN201520229691U CN204572429U CN 204572429 U CN204572429 U CN 204572429U CN 201520229691 U CN201520229691 U CN 201520229691U CN 204572429 U CN204572429 U CN 204572429U
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- China
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- water pump
- water
- piston
- cover plate
- guide holder
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Abstract
The utility model provides a kind of water pump backflow structure, belongs to pump technology field.It solve that existing water pump backflow structure structural design is unreasonable, the problem of backflow weak effect.This water pump backflow structure, the guide holder comprising the valve seat being located at pump outlet lower end, the piston be equipped with valve seat and be located at above piston, guide rod is equipped with in guide holder, lower end and the piston of guide rod are connected, guide holder has the through hole supplying water and pass through, the top that water outlet is positioned at guide holder is provided with limit dais, limit dais is hinged with when water pump stops for closing the cover plate that can upwards raise of water outlet.The utility model has the advantages such as structural design and tear, backflow be effective.
Description
Technical field
The utility model belongs to pump technology field, relates to a kind of water pump backflow structure, particularly a kind of backflow structure for pump outlet place.
Background technique
Water pump is conveying liquid or the machinery making fluid pressurization, and existing water pump comprises the pump housing and is arranged on the impeller in the pump housing, the pump housing have water intake and water outlet, when water pump uses, by the rotary action of impeller on liquid, liquid is flow in conveyance conduit by water intake and water outlet.When water pump does not use, the liquid in conveyance conduit and the pump housing flows backwards under gravity, and the liquid in the pump housing reduces, and air enters in the pump housing thereupon.Water pump upper once work time, need to make liquid to refill space in the pump housing, and air extruded, normally could carry liquid, reduce the working efficiency of water pump.
Such as, Chinese patent discloses a kind of novel backflow water pump [Authorization Notice No. is CN202690465 U], water pump cover is provided with water intake and water outlet, the water outlet of water pump cover is provided with anti-backflow device, when after the power supply switched off the pump, the anti-backflow device of water pump cover water outlet of the present utility model, makes the water in pump flow backwards away, user does not need again water filling again when next time uses, and its operation is comparatively easy.But, there is friction between connecting rod and guide holder in the anti-backflow device of this structure, after water pump stops, the impurity in water also can increase friction between the two, and piston cannot drop to specified position, and current still can reflux, and does not reach the object of backflow.Therefore, need to improve this structure, the object of backflow can be reached.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes the water pump backflow structure that a kind of reasonable in design, backflow are effective.
The purpose of this utility model realizes by following technical proposal:
This water pump backflow structure, the guide holder comprising the valve seat being located at pump outlet lower end, the piston be equipped with valve seat and be located at above piston, guide rod is equipped with in described guide holder, lower end and the described piston of described guide rod are connected, described guide holder has the through hole supplying water and pass through, it is characterized in that, the top that described water outlet is positioned at guide holder is provided with limit dais, described limit dais is hinged with when water pump stops for closing the cover plate that can upwards raise of water outlet.
When guide rod is stuck in guide holder, after water pump cuts out, backflow due to water drives cover plate to swing around the articulating point of itself and limit dais, until fit completely with limit dais, seal up pump outlet, water in pump can not be flow backwards away, do not need again water filling again when next time uses, operate very easy.By the dual backflow operator guards of piston and cover plate, can effectively prevent the water in water pump from refluxing.
In above-mentioned water pump backflow structure, described limit dais is obliquely installed, and the articulating point of above-mentioned cover plate is positioned at the lower edge of limit dais.The object of such setting is, cover plate easily changes position by the flow direction of current, when water pump is opened, cover plate upwards swings and is in open mode, and when water pump stops, cover plate is rocked to downwards fits with limit dais, water outlet is in closed state, the opening and closing ratio of cover plate is easier to, and can not form stuck state, effectively prevents the water in water pump from refluxing.
In above-mentioned water pump backflow structure, the upper end thereof of described guide rod has a connecting rod, and the upper end of described connecting rod and the lower surface of described cover plate are hinged.Why guide rod can be stuck in guide holder, because the active force acted on piston is less than the frictional force between guide rod and guide holder when water refluxes, after guide rod is connected with cover plate, flow action active force is on the cover board large, promote to drive guide rod to move downward while cover plate moves downward, thus drive piston to coordinate with valve seat, reach effect of dual backflow.
In above-mentioned water pump backflow structure, described piston is hemispherical.Can better coordinate with valve seat.
Compared with prior art, this water pump backflow structure has the following advantages:
Its reasonable in design, easy for installation, versatility is good, without the need to adding water when reusing, easy and simple to handle; Limit dais is set to the inclined-plane tilted, and when water pump cuts out, cover plate is subject to water gravity in self gravitation and the pump housing, perpendicular to the component effect of cover plate, makes cover plate contact with limit dais tightr, better tightness; Dual backflow effect is realized, the better effects if of backflow by piston and cover plate.
Accompanying drawing explanation
The view of backflow structure when Fig. 1 is water pump stopping.
The view of backflow structure when Fig. 2 is water pump unlatching.
In figure, 1, valve seat; 2, piston; 3, guide holder; 31, through hole; 4, guide rod; 5, limit dais; 6, cover plate; 7, connecting rod.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
This water pump backflow structure as depicted in figs. 1 and 2, the guide holder 3 comprising the valve seat 1 being located at pump outlet lower end, the piston 2 be equipped with valve seat 1 and be located at above piston 2, in the present embodiment, piston 2 is set to hemispherical, can better coordinates with valve seat 1.
As shown in Figure 1, be equipped with guide rod 4 in guide holder 3, lower end and the described piston 2 of guide rod 4 are connected, and guide holder 3 have the through hole 31 supplying water and pass through.As depicted in figs. 1 and 2, the top that water outlet is positioned at guide holder 3 is provided with limit dais 5, limit dais 5 is hinged with when water pump stops for closing the cover plate 6 that can upwards raise of water outlet.
When guide rod 4 is stuck in guide holder 3, after water pump cuts out, backflow due to water drives cover plate 6 to swing around the articulating point of itself and limit dais 5, until fit completely with limit dais 5, seal up pump outlet, water in pump can not be flow backwards away, do not need again water filling again when next time uses, operate very easy.By the dual backflow operator guards of piston 2 and cover plate 6, can effectively prevent the water in water pump from refluxing.
Concrete, as shown in Figure 2, limit dais 5 is obliquely installed, and the articulating point of cover plate 6 is positioned at the lower edge of limit dais 5.The object of such setting is, cover plate 6 easily changes position by the flow direction of current, when water pump is opened, cover plate 6 upwards swings and is in open mode, and when water pump stops, cover plate 6 is rocked to downwards fits with limit dais 5, water outlet is in closed state, the opening and closing ratio of cover plate 6 is easier to, and can not form stuck state, effectively prevents the water in water pump from refluxing.
As depicted in figs. 1 and 2, the upper end thereof of guide rod 4 has a connecting rod 7, and the upper end of connecting rod 7 and the lower surface of described cover plate 6 are hinged.Why guide rod 4 can be stuck in guide holder 3, because effect active force is on the piston 2 less than the frictional force between guide rod 4 and guide holder 3 when water refluxes, after guide rod 4 is connected with cover plate 6, the active force of flow action on cover plate 6 is large, promote to drive guide rod 4 to move downward while cover plate 6 moves downward, thus drive piston 2 to coordinate with valve seat 1, reach effect of dual backflow.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (4)
1. a water pump backflow structure, comprise the valve seat (1) being located at pump outlet lower end, the piston (2) be equipped with valve seat (1) and the guide holder (3) be located at above piston (2), guide rod (4) is equipped with in described guide holder (3), lower end and the described piston (2) of described guide rod (4) are connected, described guide holder (3) has the through hole (31) supplying water and pass through, it is characterized in that, the top that described water outlet is positioned at guide holder (3) is provided with limit dais (5), described limit dais (5) is hinged with when water pump stops for closing the cover plate (6) that can upwards raise of water outlet.
2. water pump backflow structure according to claim 1, is characterized in that, described limit dais (5) is obliquely installed, and the articulating point of above-mentioned cover plate (6) is positioned at the lower edge of limit dais (5).
3. water pump backflow structure according to claim 1, is characterized in that, the upper end thereof of described guide rod (4) has a connecting rod (7), and the upper end of described connecting rod (7) and the lower surface of described cover plate (6) are hinged.
4. water pump backflow structure according to claim 1, is characterized in that, described piston (2) is in hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229691.2U CN204572429U (en) | 2015-04-16 | 2015-04-16 | Water pump backflow structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520229691.2U CN204572429U (en) | 2015-04-16 | 2015-04-16 | Water pump backflow structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572429U true CN204572429U (en) | 2015-08-19 |
Family
ID=53865076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520229691.2U Expired - Fee Related CN204572429U (en) | 2015-04-16 | 2015-04-16 | Water pump backflow structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979139A (en) * | 2017-05-24 | 2017-07-25 | 安徽寅时压缩机制造有限公司 | A kind of compressor air exhausting unit with energy regenerating check valve |
-
2015
- 2015-04-16 CN CN201520229691.2U patent/CN204572429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979139A (en) * | 2017-05-24 | 2017-07-25 | 安徽寅时压缩机制造有限公司 | A kind of compressor air exhausting unit with energy regenerating check valve |
| CN106979139B (en) * | 2017-05-24 | 2019-04-23 | 安徽寅时压缩机制造有限公司 | A kind of compressor air exhausting unit with energy regenerating check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |